TPS23841PAPR Integrated Circuits (ICs)

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Power Over Ethernet (PoE) Controllers is the application of controllers that provides power to devices over a single Ethernet cable. The TPS23841PAPR is a perfect controller that can provide PoE power to connected devices such as sensors, actuators and other equipment. In this article, let’s look into the application field and working principle of the TPS23841PAPR.

Application Field of TPS23841PAPR

The TPS23841PAPR is designed for the purpose of deploying PoE-capable devices over a single Ethernet cable. It is designed for use in low power applications. It is capable of providing up to 15 watts of power over a single Ethernet cable. It has a wide range of applications, from powering medical devices and sensors in hospitals, to PoE lighting and security systems. The TPS23841PAPR is a great choice for deployment of low-power devices over Ethernet.

Working Principle of TPS23841PAPR

The TPS23841PAPR comprises of a controller integrated with an isolated DC-DC converter. It is connected to an Ethernet switch to detect a valid PoE session and to negotiate the power level. The converter is responsible for converting the Ethernet signal into a regulated DC power. This is done using a voltage divider and a current sense resistor to control the current. The controller then regulates the output of the converter to ensure the correct power is applied to the end device. It also monitors for over-current and short circuit conditions to protect both the device and the Ethernet switch from damages. This is done by monitoring the current drawn from the Ethernet connection and stopping the power delivery should a fault be detected.

In addition, the TPS23841PAPR also has a number of features that make it suitable for low power applications. It has an enable pin that allows the user to turn the power off manually when not in use. It also features a low power mode which reduces standby power consumption. The TPS23841PAPR also supports inrush current limiting, making it suitable for use with capacitive loads.

Conclusion

The TPS23841PAPR is an ideal stand-alone controller for low power PoE applications. It provides an efficient and reliable solution for applications such as medical devices, sensors and PoE lighting. It is easy to setup and use, with features such as an enable pin and low power mode to make it user friendly.

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